447800020920 has 192 divisors, whose sum is σ = 1724859601920. Its totient is φ = 102354274944.

The previous prime is 447800020919. The next prime is 447800020961. The reversal of 447800020920 is 29020008744.

447800020920 is a `hidden beast` number, since 447 + 8 + 0 + 0 + 0 + 209 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3222672 + ... + 3358751.

It is an arithmetic number, because the mean of its divisors is an integer number (8983643760).

Almost surely, 2^447800020920 is an apocalyptic number.

447800020920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447800020920 is an abundant number, since it is smaller than the sum of its proper divisors (1277059581000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447800020920 is a wasteful number, since it uses less digits than its factorization.

447800020920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581456 (or 6581440 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 447800020920 in words is "four hundred forty-seven billion, eight hundred million, twenty thousand, nine hundred twenty".